Rotary valve shaft

Details Rotary valve shaft Rotary valve shaft

1991-04-30

1992-07-07

Cross, E. Rollins

Internal-combustion engines

Valve

Rotary

1231904, 1231906, F01L 702

Patent

active

051273764

ABSTRACT:
A novel rotary valve system is provided which comprises an intake rotary valve shaft and an exhaust rotary valve shaft, each shaft including a passage adapted to deliver fuel to the combustion chamber or remove exhaust gas from the combustion chamber. Each passage comprises a groove having a U-shaped cross-section extending around the periphery of the shaft and a rectangular notch communicating with the groove on one side of the notch. The novel fuel and exhaust passage of this embodiment may instead be incorporated in a single rotary valve shaft. In another embodiment, two rotary valve shafts are provided having an intake and exhaust passage, each passage including a 360.degree. groove and valve channels extending through the rotary valve shafts and communicating with the grooves.

REFERENCES:
patent: 1702816 (1929-02-01), Danford
patent: 1860725 (1932-05-01), Stoner
patent: 2730088 (1956-01-01), Hyde
patent: 4134381 (1979-01-01), Little
patent: 4517938 (1985-05-01), Kruger
patent: 4541371 (1985-09-01), Kageyama et al.
Article entitled: "Say Smokey: what's the car engine of the future?" appearing in Mar. 1989 issue of Popular Science magazine.

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